| 摘要 |
A rubber pad (53) comprising a support plate (54) having substantially the same shape as an outer surface of an iron shoe plate (31) provided on its outer surface with lugs (32,33,34) and a mudhole (35,36) formed in a portion between the lugs, a rubber block (55) vulcanized and adhered to the support plate (54) and having substantially the same shape as the outer surface of the iron shoe plate (31), in which a hooking member (61,62) is secured to a convex portion (59,60) of the support plate (54) at a position corresponding to the mudhole (35,36) so as to engage with an edge portion of the mudhole. |
